Pronunciation: (pap), [key]
1. a test for cancer of the cervix, consisting of the staining of cervical cells taken in a cervical or vaginal smear (Pap' smear" or pap' smear") for examination of exfoliated cells.
2. a vaginal Pap smear used to evaluate estrogen levels.
3. an examination of exfoliated cells in any body fluid, as sputum or urine, for cancer cells. Also,pap' test".Also called Papanicolaou test.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.